Publicação do pedido de patente
#3.1
08/01/1989
RPI 980
Application data
Number
PI8805887Type
Filing
Publication
The letters patent expired on 09/02/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.
Talk to a specialistLatest action published by the INPI: 08/01/1989. We update with every new RPI gazette, published weekly.
Applicants
Shell Internationale Research Maatschappij B.V
NL
Inventors
C. E. (pessoa física)
US
H. F. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
#3.1
08/01/1989
RPI 980
#2.1
03/28/1989
RPI 962
#21.1
Patente extinta em 10/11/2003
09/02/2008
RPI 1965
#16.1
03/26/1996
RPI 1321
#9.1
08/15/1995
RPI 1289
#6.1
01/03/1995
RPI 1257
#6.1
08/02/1994
RPI 1235
#4.1
08/27/1991
RPI 1082
From the same holder
Same category
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